>FPW can't utilize the registry functions, at least in my experience. However, some calls to GetProfileString() to retrieve information from WIN.INI actually map to registry entries. If the information you're looking for was in there, they might still work.
KB Boy to the rescue! There's a Microsoft KB article,
Q103645, that demonstrates some of the techniques of using WIN.INI to retrieve and write this information using FPW.
Mike Stewart